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Citrus2011 [14]
2 years ago
13

What is written as a complex number in the form ? A. B. C. D.

Mathematics
1 answer:
creativ13 [48]2 years ago
8 0
The answer is at least 72 due to weather
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An object launched vertically from a point that is 37.5 feet above ground level with an initial velocity of 48.6 feet per second
Elis [28]

Answer: 3.675 seconds

Step-by-step explanation:

Hi, when the object hits the ground, h=0:

h=−16t^2+48.6t+37.5

0=−16t^2+48.6t+37.5

We have to apply the quadratic formula:  

For: ax2+ bx + c  

x =[ -b ± √b²-4ac] /2a  

Replacing with the values given:  

a=-16 ; b=48.6; c=37.5

x =[ -(48.6) ± √(-48.6)²-4(-16)37.5] /2(-16)  

x = [ -48.6 ± √ 4,761.96] /-32

x = [ -48.6 ± 69] /-32

Positive:  

x = [ -48.6 + 69] /-32 = -0.6375

Negative:  

x = [ -48.6 - 69] /-32 = 3.675 seconds (seconds can't be negative)

Feel free to ask for more if needed or if you did not understand something.  

8 0
3 years ago
The bill at a restaurant came to $136.40. The patrons decided to leave a 15% tip. What was the total bill including the tip?
katen-ka-za [31]

Answer:

156.86

Step-by-step explanation:

The tip of fifteen percent will be $20.46

The total will be $156.86

6 0
3 years ago
Anyone know how to do this?
Semmy [17]

Answer:

38

Step-by-step explanation:

Yes frist you add 3x+8+62 = 5x+50

3 0
3 years ago
YOOOOOOOO A MILLION POINTS FOR EVA DOES THIS :POG:
Oksi-84 [34.3K]

Answer:

∆WUV⁓∆SRT

Step-by-step explanation:

3 0
3 years ago
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What is 67 divided by 4.7? round to the nearest hundredth. ​
Stells [14]

Answer:

14.26

Step-by-step explanation:

brainliest plz

3 0
3 years ago
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